MEMORANDUM **

Ed Needles appeals the order of the district court revoking his probation. We have jurisdiction under 28 U.S.C. § 1291, we review for an abuse of discretion and we affirm.

1. Needles’ argument that he was not in violation of the terms of his probation because he had an approved plan of operation constitutes an impermissible collateral attack on his conviction. See United States v. Simmons, 812 F.2d 561, 563 (9th Cir. 1987) (“[A]n appeal from a probation revocation is not the proper avenue for a collateral attack on the underlying conviction.”). We therefore decline to entertain this argument.

2. The condition of probation requiring Needles to remove all property from Forest Service lands within 30 days was not impermissibly vague. The record shows that the condition applied to all property owned by Needles and his partners, and that he was aware of the full scope of the condition. The condition was sufficiently specific. See 18 U.S.C. § 3563(d); United States v. Soltero, 510 F.3d 858, 866 (9th Cir. 2007) (per curiam).

3. We also reject Needles’ argument that he was required to remove property that he neither owned nor controlled. First, although Needles asserts that the property belonged to Arthur Sappington, he has not presented any admissible evidence to that effect. He instead relies on hearsay statements by his attorney. Second, even if the property was “owned” by Sappington, Needles has not presented any' evidence that he lacked authority to remove it. Finally, the district court did not impose a duty on third parties; United States v. Sweeney, 914 F.2d 1260, 1263 (9th Cir. 1990), is therefore inapplicable.

AFFIRMED.