This case requires us to review the district court’s dismissal, as a discovery sanction, of a civil contempt complaint filed by the Secretary of Labor against Mosher Steel Company, a Birmingham, Alabama, manufacturer. We hold that the district court abused its discretion in ordering discovery, and therefore we VACATE the discovery sanctions imposed by the district court and REMAND for a decision on the merits of the Secretary’s contempt complaint and Mosher Steel’s motion to quash the inspection warrant. We instruct the district court to dismiss Mosher Steel’s counterclaim.
I
On August 16, 1983, a federal magistrate issued a warrant authorizing the Occupational Safety & Health Administration (OSHA) to inspect the worksite at Mosher Steel’s Birmingham plant, which manufactures fabricated structural steel. The warrant was not based on a complaint, but was issued pursuant to an OSHA plan of programmed inspection. The Supreme Court in Marshall v. Barlow’s, Inc., 436 U.S. 307, 98 S.Ct. 1816, 56 L.Ed.2d 305 (1978) ruled that warrantless OSHA inspections are unconstitutional, but permitted the Secretary of Labor to establish administrative probable cause for a warrant on a showing that “ ‘reasonable legislative or administrative standards for conducting an ... inspection are satisfied with respect to a particular [establishment].’ ” Id. at 320, 98 S.Ct. at 1824, quoting Camara v. Municipal Court, 387 U.S. 523, 538, 87 S.Ct. 1727, 1736, 18 L.Ed.2d 930 (1967).
Mosher Steel refused to honor the inspection warrant. OSHA thereupon petitioned the district court to hold Mosher in civil contempt. In response,. Mosher filed an answer contesting the validity of the warrant and a counterclaim for declaratory judgment alleging, inter alia, that OSHA’s administrative inspection plan itself was unreasonable and discriminatory in violation of the fourth and fifth amendments. Mosher further sought a subpoena duces tecum to depose the OSHA supervisor and to order production of certain OSHA documents relating to the plan.
OSHA moved to quash the latter subpoena and asked the district court for a protective order, arguing that Mosher could not engage in discovery beyond the “four corners” of the warrant application. Mosher responded with a motion to compel discovery under Fed.R.Civ.P. 37(a). The district court decided in Mosher’s favor, ordering discovery and thereafter denying OSHA’s motion to stay discovery and to dismiss the counterclaim.
OSHA asked the district court to certify the discovery and warrant issues for interlocutory appeal. The lower court granted the request, but this Court denied the petition in October 1984. The district court then once again ordered OSHA to comply with its discovery order, and once again OSHA refused. The court thereupon imposed discovery sanctions under Rule 37(b)(2) — dismissing the contempt action with prejudice, entering judgment by default on Mosher’s counterclaim, quashing the inspection warrant, enjoining further inspection of Mosher based on this administrative plan, and awarding Mosher costs and attorney’s fees. The Secretary of Labor appeals this judgment.
II
We review the district court’s dismissal of the contempt complaint, and its *1537issuance of the underlying discovery order, under the abuse of discretion standard. Although dismissal is a severe sanction, imposition of sanctions for failure to provide discovery rests within the trial court’s discretion and will not be overturned absent abuse of that discretion. U.S. v. $239,500 in U.S. Currency, 764 F.2d 771, 773 (11th Cir.1985). Appeal of an order imposing sanctions necessarily includes a review of the underlying discovery order. Hastings v. North East Ind. School Dist., 615 F.2d 628, 631 (5th Cir.1980). The district court’s discovery order is also reviewable only for abuse of discretion. American Key Corp. v. Cole Nat. Corp., 762 F.2d 1569, 1571 (11th Cir.1985). We conclude that here the district court abused its discretion in ordering discovery, and in awarding sanctions based on the secretary’s failure to comply with the improper discovery order.
The district court had no power to order discovery beyond the so-called “four corners” of the warrant application. The four corners rule is a well-established precept of judicial review. It derives from the observation of the Supreme Court, in Aguilar v. Texas, 378 U.S. 108, 109 n. 1, 84 S.Ct. 1509, 1511 n. 1, 12 L.Ed.2d 723 (1964), that “[i]t is elementary that in passing on the validity of a warrant, the reviewing court may consider only information brought to the magistrate’s attention” — that is, within the four corners of the warrant application.
The four corners rule logically applies to all warrants, criminal or administrative. In either case the reviewing court is charged with examining the magistrate’s actual probable cause determination — not what he or she might have concluded based on information not presented in the warrant application. (The magistrate, of course, is not limited in what he or she may consider in the first instance.) This Court has acknowledged the broad scope of the rule:
The standards for reviewing a magistrate’s finding of probable cause are the same for both administrative and criminal warrants. In passing on the validity of a warrant, the role of the reviewing court is limited.... [Jjudicial review of the sufficiency of an affidavit for the issuance of a warrant must be strictly confined to the information brought to the magistrate’s attention.
West Point Pepperell, Inc. v. Donovan, 689 F.2d 950, 959 (11th Cir.1982) (warrant based on complaint) (citations omitted). See also id. at 960 n. 12; Brock v. Gretna Machine & Ironworks, Inc., 769 F.2d 1110, 1114 (5th Cir.1985) (warrant based on inspection plan) (“[i]n determining the validity of the warrant we will look no further than the application itself, including any attachments and exhibits, and any sworn testimony given in conjunction therewith”).1
Mosher Steel seeks to circumvent the four corners rule by characterizing its counterclaim as an attack on the administrative plan underlying the OSHA inspection warrant — rather than as a challenge to the warrant itself — so that it may request broad discovery about that plan. Appel-lee’s implication is that the plan is somehow separable from the warrant application and may be independently attacked in a proceeding to enforce the warrant. We are unpersuaded by this argument.
The magistrate’s probable cause determination in issuing an administrative warrant necessarily includes a review of the inspection plan on which the search is to be based. The Supreme Court in Bar*1538low’s expressly contemplated that “[a] warrant ... would provide assurances from a neutral officer that the inspection is reasonable under the Constitution, is authorized by statute, and is pursuant to an administrative plan containing specific neutral criteria.” Barlow’s, supra, at 323, 98 S.Ct. at 1825 (emphasis added). The information presented to the magistrate unquestionably must be sufficient to satisfy that officer that he or she can properly assess the plan’s neutrality. Cf. Gretna, supra, at 1113. If this information is not sufficient, then the remedy is not to permit broad discovery beyond the scope of the warrant application by the employer on review — it is for the magistrate to deny the warrant in the first instance.
Nowhere does Barlow’s, or the law of this Circuit, require the Secretary to disclose information about its inspection plan beyond that necessary to satisfy the magistrate that the plan is neutrally-based. Mosher sought, for example, to inquire into the daily logs or worksheets of OSHA compliance officers and to discover documents and data supporting but not included in certain warrant affidavits. To permit such a broad-based inquiry is simply to invite misuse of the warrant process mandated by the Supreme Court. In Barlow’s, while the Court held that the Constitution required a warrant for OSHA inspections, it nevertheless permitted that warrant to issue ex parte and acknowledged its concern about resistance and delay. Barlow’s, supra, at 316; 316-17 n. 11; and 320 n. 15, 98 S.Ct. at 1822; 1822 n. 11; and 1824 n. 15. The district court had no authority to conduct the time-consuming and exhaustive hearing that Mosher sought.2 We thus agree with the Tenth Circuit’s observation, when it considered and denied a similar discovery request in Donovan v. Hackney, Inc., 769 F.2d 650 (10th Cir.1985), cert. denied sub nom. Hackney, Inc. v. Brock, — U.S. —, 106 S.Ct. 1458, 89 L.Ed.2d 715 (1986);
We do not believe that Marshall v. Barlow’s ... envisions the expanded eviden-tiary inquiry here sought by [the employer] in its efforts to resist an inspection of its plant; an inspection, incidentally, which is itself limited and subject to restrictions as set forth by the magistrate in his order. Rather, Barlow’s, in our view, suggests that inspection warrants, which are required under that opinion, are to be issued ex parte and “executed without delay and without prior notice .... ”
Id. at 653 (citations omitted).3
In sum, we are satisfied that the administrative warrant process set out by the Supreme Court for OSHA inspections sufficiently protects appellee’s constitutional *1539rights and appropriately, limits the discretion of administrative officials. See Donovan v. Sarasota Concrete Co., 693 F.2d 1061, 1067 (11th Cir.1982). We decline to expand or to go beyond that process. Since we decide in favor of the Secretary on this issue, we need not consider the latter’s Administrative Procedure Act and prosecutorial discretion arguments. We hold that the district court abused its discretion in authorizing discovery beyond the four corners of the warrant application in this case. We therefore VACATE the court’s award of Rule 37 sanctions based on OSHA’s refusal to comply with the improper discovery order. Further, we instruct the district court to dismiss the counterclaim.
Since neither the Secretary’s contempt claim nor Mosher Steel’s motion to quash the warrant for lack of probable cause have been decided on the merits, we REMAND for the lower court’s review of the sufficiency of the warrant itself within the bounds of the warrant application.
. The Supreme Court has carved out a single narrow exception to this rule in Franks v. Delaware, 438 U.S. 154, 98 S.Ct. 2674, 57 L.Ed.2d 667 (1978), which permits a reviewing court— on a "substantial preliminary showing” by the party bringing the warrant challenge — to hold an evidentiary hearing to determine the truthfulness of facts presented to the magistrate. No Franks claim is raised here. Except in a Franks situation, “a reviewing court should not conduct a probable cause hearing in which it considers evidence not presented to the magistrate.” West Point-Pepperell, supra, at 959.
. The Supreme Court in Barlow's, although "unconvinced ... that requiring warrants to inspect will impose serious burdens on the inspection system or the courts ..." rioted that the warrant requirement "might have an impact on whether owners choose to resist requested searches; we can only await the development of evidence not present on this record to determine how serious an impediment to effective enforcement this might be.” Barlow’s, supra, at 316-17 n. 11, 98 S.Ct. at 1822 n. 11. We are persuaded that, given the general acceptance of the so-called "worst-first” inspection plan followed by the Secretary, see Donovan v. Hackney, Inc., 583 F.Supp. 773, 779 (W.D.Ok.1984), aff'd, Hackney, supra; Donovan v. Wollaston, 695 F.2d 1, 5 (1st Cir.1982), Mosher's tactic may be calculated as one such deliberate impediment to enforcement. Cases with markedly similar facts such as Gretna, supra, and Hackney, supra, suggest that resistance to a search, coupled with a counterclaim and request for discovery on the inspection plan in the subsequent contempt proceedings, is the latest "stop OSHA” strategy.
. See also Marshall v. Milwaukee Boiler Mfg. Co., Inc., 626 F.2d 1339, 1345-46 (7th Cir.1980) (citations omitted):
[W]e cannot agree with the Company that an application need be accompanied by all of the supporting documents, or indeed any of them, upon which the factual assertions of the application are based.... [T]he agency is not required to make a massive evidentiary showing of particularized cause and a simple warrant request hearing should not be turned into a full-blown hearing. We continue to decline “imposing on the Secretary an unwanted consumption of enforcement energies” which would "exceed manageable proportions.”