This appeal concerns the determination of common boundary lines between adjoining lake lots on Silver lake in Kent county, Michi*93gan. The similarities of this appeal to those of Weisenburger v. Kirkwood (1967), 7 Mich App 283, are numerous, however the dissimilarities present herein of fact and issue preclude memorandum treatment.
The trial court’s opinion states the facts well:1
*94“This suit involves accretion of land at Silver lake in Kent county, Michigan. Plaintiffs are the owners of a cottage located at the southwest portion of Silver lake on a lot 50 feet wide and 80 feet deep. Defendants Charles B. Barnes and wife are the owners hy land contract of a home adjacent on the north to the plaintiffs’ cottage which premises are being purchased on a land contract from defendants Cashion. The premises owned by defendants Barnes and Cashion are 60 feet wide and 100 feet deep. Third-party defendants MacGregor are the owners of a cottage adjacent on the north to the premises owned by defendants Barnes and Cashion which said premises are 60 feet wide and 100 feet deep.
“By reason of the change in water level of Silver lake substantial lands have accreted in front of or on the east of the premises owned by the parties. A dispute has arisen as to the use and occupation of said accreted lands and plaintiffs seek to restrain defendants Barnes from interfering with their use of a proportionate share of the accreted land.
“Defendants Cashion are not represented and have not been defaulted as they are the land contract vendors. Defendants Barnes as land contract vendees have filed answer to plaintiffs’ complaint seeking to have the court determine the boundary line between their premises and the lands owned by the plaintiffs herein and have filed counterclaim claiming that they are entitled to the lands between their premises and the water by extending the side lot lines and that they have adverse possession thereof.
“Defendants Barnes have also filed third-party complaint against third-party defendants MacGreg- . or seeking to have this court determine the property lines between the premises owned by the third-party plaintiffs and the third-party defendants. Third-party defendants MacGregor have filed answer and affirmative defenses claiming that they have had *95adverse possession, and by acquiescence they are entitled to the premises between their lands and the water’s edge with the side lot lines extended.
“The pleadings frame the issues to be tried by the court and it is necessary for this court to determine two property lines, namely, between plaintiffs’ and defendants Barnes’ premises, and between defendants Barnes’ premises and third-party defendants MacGregors’ premises.
“In order to better understand the situation now existing it is necessary to review the history of these lands. All three of these premises have cottages or homes on them and the lands are located in the southwest portion of Silver lake. The lots run in a generally east-west direction with the plaintiffs’ premises being 20 feet shorter than the other parties’ premises. The premises to the south of plaintiffs’ premises run in a generally northeasterly-southwesterly direction instead of a due east-and-west direction. There has been a substantial accretion of land of approximately 150 to 200 feet in front of the parties’ premises. All parties claim from a common grantor, namely, Howard M. Weller. The court took testimony from old residents of the area which indicated that in front of the parties’ three premises there had formerly been a lagoon or bayou with an indefinite and irregular shoreline that subsequently as the lake receded this area became solid enough to become a portion of the beach, that it varied from year to year and that in 1942 the lands were substantially higher than they had been in 1941.
“The testimony further reflected at various times the water was within 40 or 50 feet of the front lot lines of plaintiffs’ and defendants’ houses. In 1925 the former common owner of these premises executed an agreement which was recorded in 1926 which purported to convey to the ‘present respective owners of said lots whatever land, if any there be, located immediately between each of said lots and the shore or water line of said Silver lake so that *96each of the respective present owners of said lots or parcels of land, their heirs and assigns shall own and have title to any and all land located immediately between the front line and projected side lines of said lots and said Silver lake.’
“This said instrument also purported to convey all ‘riparian and shore rights’ but further provided that land not exceeding four feet in width along the shore of the lake should be used in common as a walk. At the time of the recording of this instrument Mr. Weller was no longer the owner of the premises owned by the parties hereto. Neither was there any clear showing as to the location of the water’s edge at the time of this purported conveyance.
“Gradually as lands accreted in front of the premises here involved and the premises south of plaintiffs’ premises question arose as to the ownership of the accreted lands. On May 3, 1945, the Kent county surveyor’s office prepared a survey of the three premises immediately adjacent on the south to the plaintiffs’ premises. These are the lots which run in a generally northeasterly and southwesterly direction. At that time it appears that there was approximately 200 feet between the front lot line and the water’s edge of those three premises. The survey, instead of extending- the side lot lines to the water’s edge, established a different course. Testimony taken at the trial indicated that the survey extended the side lot lines to the imaginary center of the lake so that the directions of the extended lines are in varying degrees from those established by the side lot lines. They run at approximately a 20-degree variance from the side lot line.
“Testimony was taken from the former owner of plaintiffs’ premises who stated that as a result of the above survey he had his premises surveyed by the Kent county surveyor’s office in 1946. The survey was received into evidence as exhibit 3 and indi*97cates again the extension from plaintiffs’ premises to the imaginary center point of Silver lake. The projected line is at approximately a 24-degree variance from the side lot line and causes the land between the front of plaintiffs’ premises and the water’s edge to be in a generally northeasterly-southwesterly direction at approximately the same angle as the extended lines on the survey for the premises to the south.
“There is a conflict as to the use of the lands in front of the parties’ premises. It appears that over the years when the neighbors were friendly and cooperative there was some joint use of a substantial portion of the beach. At various times certain of the owners even had a common dock and common diving raft. At another time it appears there was a concerted effort by the three parties here involved not to use premises to the south of plaintiffs’ premises but generally the premises south of the plaintiffs’ premises utilized the beach in a manner consistent with the 1945 survey which was received in evidence as exhibit 7. One of the owners established a tennis court on this area and a concrete dock. The general effect of accepting this 1945 survey (exhibit 7) is that all adjacent property owners received a proportionate share of the beach. The result of the acceptance by the parties of the premises to the south has been that the Aalsburg and Barnes premises have utilized over the years substantially less than their proportionate share of the beach based upon the width of their lots.”
From the above difficult and complicated factual situation the trial court determined that up through 1942 the parties acquiesced, used and consented to an extension of their side lot lines in setting common boundaries over accreted lands. In addition, the trial court determined that from the extension of their side lot lines to the 1942 shoreline, the parties’ common boundary lines were to be extended over *98the remaining accreted lands at angles running to “the imaginary center point” of Silver lake.
Plaintiffs have appealed the trial court’s determination asserting the trial court’s use of the 1942 shoreline was improper and that the 1925 shoreline, as testified to by Joe Gavera, be used in determining the property line between Aalsburg and Barnes. Further that the 1916 shoreline be used in determining the property line between the MacGregors’ and Barnes’ properties or a just and proportionate division of the shoreline be made between the 3 disputing property owners by extending the north side lot line of MacGregors’ property to the lake and by extending the south side lot line of Aalsburg to the lake.
Defendants indicate a general satisfaction with the trial court’s determination. They indicate that the 1946 shoreline should have been used by the trial court instead of the 1942 shoreline.
After a careful reading of the transcript, we conclude that there was insufficient evidence presented to permit a finding of acquiescence as to the common side lot lines extended to the 1942 shoreline. See Weisenburger v. Kirkwood, supra. The trial court’s finding would suppose acquiescence by Aalsburgs’ predecessors from 1926 to 1942 to use and possession of almost one-half of Aalsburgs’ 1942 or 1946 shoreline by Barnes’ predecessors. The testimony shows no definite established boundary lines but only a “live and let live” course of conduct, i.e., both parties using the same land from time to time • during those years as well as during the following years until the 1960’s.
The 1925 Weller conveyance conveyed to the then owners of the previously deeded lake lots riparian rights to Silver lake in the following manner:
*99“Now therefore, said Howard M. Weller for and in consideration of the sura of one dollar and other good and valuable considerations to him paid by each of the present owners of said lots or parcels of land heretofore sold by said Howard M. Weller , and wife or by said Howard M. Weller, a widower, as above mentioned, the receipt of which considerations is hereby confessed and acknowledged, does hereby grant, bargain, sell and convey to each of said present owners of said lots or parcels of land, their heirs and assigns, that certain piece, parcel or strip of land located immediately between each of said lots or parcels of land respectively as described in the original deeds or conveyances from said Howard M. Weller and wife of said Howard M. Weller, a widower, and the shore or water line of said Silver lake together with all riparian and shore rights; all said lands being located in the southeast fractional one-fourth of section 9, Cannon township, Kent county, Michigan.
“It being the intent of said Howard M. Weller to hereby grant, bargain, sell and convey to each of the present respective owners of said lots or parcels of land heretofore purchased from himself and wife or himself as a widower, their heirs and assigns whatever land if any there be, located immediately between each of said lots and the shore or water line of said Silver lake so that each of the respective present owners of said lots or parcels of land, their heirs and assigns shall own and have title to any and all land located immediately between the front line and projected side lines of said lots and said Silver lake.”
This conveyance related back to the original conveyances for the respective lake lots.
The lowering of the lake level has brought about a condition of reduced lake shoreline. Prior to this suit there arose a dispute as to how the remaining lake shoreline was to be shared by the parties *100herein. The establishment of the geographic center of Silver lake by the trial court has been accepted by the parties herein for all practical purposes.
The method of allocating accreted shorelands was stated in Weisenburger v. Kirkwood, supra. Herein a modification of that rule is available because the parties recognize an approximate geographic center of Silver lake and because the lake is nearly circular in shape. The present shoreline in this case can be properly divided by finding the side lot line on the west side of the lake to the north closest to the disputed properties which when drawn to the present shoreline and extended runs in a straight line to the center of the lake, and finding the side lot line on the southwest side of the lake closest to the disputed properties and drawing a similar line. These lines define a segment of the lakeshore which includes the disputed lots. The present shoreline that is in this segment is to be divided amongst the property owners therein in direct proportion to the front footage of their respective original lots, i.e., in the event the present shoreline is 1/3 less than the total segment original lot frontage, a 60 foot lot would have 40 feet of shoreline, a 75 foot lot, 50 feet of shoreline, etc.
By following this rule the intent of the common grantor, H. M. Weller, can be effected with resulting equity to every riparian owner involved.2
The trial judge determined in his decision only the common lot line between the Barnes’ and MacGregors’ properties and the common lot line between the Barnes’ and Aalsburgs’ properties. The rule herein enunciated is only to be applied to ascertain the *101same common lot lines because the parties to the north of MacGregor and to the south of Aalsburg are not parties to this suit and such lot lines are subject to claims of adverse possession or settlement by acquiescence.
Affirmed in part and reversed in part and remanded for further proceedings including the taking of additional testimony if necessary, and the entry of a judgment not inconsistent with this opinion.
McGregor, P. J., and C. Kaueman, J., concurred.To aid in understanding the facts, the following sketch, a composite of several helpful maps, surveys, and sketches in the record, is provided:
To literally follow the suggested extension of the side lot lines of the lake lots to the lakeshore would effect many inequalities; i.e., because of the irregularly shaped lots, some of the lot owners would have no reduction in lake shoreline, some would have greatly reduced lake shoreline and still others would have no lake shoreline at all.